油藏开发区叠置砂体刻画技术研究——以春光油田春2-6井区为例

Research on superimposed sand body characterization techniques in reservoir development area——By taking Chun2-6 well block of Chunguang oilfield as the example

春光油田新近系沙湾组"亮点"油藏是增产增效的主力油藏类型,首先进行速度统计分析弄清沙湾组砂泥岩速度特点,在地震资料品质分析和合成记录精细标定基础上,利用地震属性技术结合地震正演模拟技术精细识别油藏开发区储层叠置现象,并进一步应用含油性检测技术识别含油气有利区,通过综合分析进行井位部署,取得良好的开发效果。

Shawan formation of Chunguang oilfield in Neogene system is the'bright spot'of main reservoir type for increased production and enhanced efficiency.Firstly through speed statistical analysis,the sand mudstone speed characteristics of Shawan formation have been made clear.Based on quality analysis of seismic data and detailed calibration of synthetic seismogram,by using seismic attribute technology and in combination with fine seismic forward modeling technology,the cascading phenomenon of reservoir development zone has been identified.With further application of oil-bearing detection technology,the favorable oil-bearing areas can be identified.Through comprehensive analysis,the well location has been deployed and good development effect has been achieved.